Berkeley Software Distribution
Berkeley Software Distribution, is an Operating System based on UNIX. It originated at the University of California, Berkeley, which it owes the first word of its name to. It has a number of descendant operating systems, such as FreeBSD, NetBSD, OpenBSD, or DragonFlyBSD. Just as people use the word Linux to commonly refer to the broad family of Linux distros, many refer to the broad family of Berkeley Software Distribution derived operating systems as simply BSD.
While BSD can be used on a desktop as one might use Microsoft Windows, BSD is rarely used this way by a typical user. That isn’t to say that the average Joe never uses products or services running BSD - it’s commonly used behind the scenes. BSD is particularly popular in the computer networking space, and is used by many networking products and tools. Netflix is one example of a company that heavily uses FreeBSD behind the scenes to help distribute video content. Furthermore, as BSD has a more permissive license than the Linux Kernel and many free software projects, some corporations choose to base their products operating system off of BSD instead. A prominent example of this in consumer electronics is the operating system of the PlayStation 5, as well as the preceding PlayStation 4. Many other systems and software incorporate specific systems or software from BSD to help make development easier.
Compare and contrast with other UNIX derived operating systems, such as Mac OS and Solaris or UNIX compatible operating systems such as those based on Linux.
Check out the websites for FreeBSD, OpenBSD, NetBSD, and DragonFly BSD.